???????????????????????????VHS?BS?????????????

1
????3

• ?????????

2
?????????

• ??????
• ???????????????????????????VHS?BS?????????????
• ??????
• CD?DVD????????D-VHS?BS?????CS????????????????????
  ?

3
???????????????

• ????(???)
• ??????????1??2????????????
• ????(???)
• ????????????????????????????
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4
????????????

• ?? ??????
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• ?????????????????????????
• ???????????????? A/D??
• ?????????????????????? D/A??

5
A/D?? ???????

• ???
• ???????????
• ???
• ??????????????????????
• ??????????????A/D?????

6
???????

• ???????????????????
• ???????????????????
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• ????
• ?????
• ????
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• ???????????CD-ROM?????

7
???????

• A/D?????????????????????????? ???????????????
• ??
• ???????????????????????????
• ?????????????????????????????????

?????????(????)
??????(??)
8
CD??

• ??12cm???1.2mm
• ???????1.6µm
• ?????????44.1kHz
• ?????????16???(21665,536)
• 2ch?74?(74?)?(??780/640MB)
• ????150kB/s
• CD???44,10016274608783,216,000byte747MB
• 1???44,100????????
• 65,536??????

9
??????

• ???????
• R?G?B ?8??????( 28256??)
• 28282822416,777,216?

????
R G B
? 255 0 0
? 0 0 255
? 0 255 0
? 0 0 0
? 255 255 255
10
????
????????????????????????????
2??
1??
1?????? R1 G1 B1
2?????? R2 G2 B2

11
???

• VGA(Video Graphics Array)
• ? 640? 480???
• SVGA(Super Video Graphics Array)
• ? 800? 600???
• XGA(eXtended Graphics Array)
• ?1024? 768???
• SXGA(Super eXtended Graphics Array)
• ?1280?1024???
• VGA??RGB?8????1??????
• 836404807,372,800???
• 921,600???
• 900k???

12
??(?????)???

• 1???30?????
• 1??????????????????30???????????

13
????

• 1???????????bps(bits per second)
• ????????28.8kbps
• ISDN64kbps
• ADSL840Mbps
• CD1.4Mbps
• ??????1.530Mbps
• ??????100Mbps

14
?????

• ????(MP3)
• ??????(JPEG)
• ????(MPEG)

15
????

• ??????????????????(??????)????????????(????????)

F1a1cosb1x
F2a2cosb2x
F3a3cosb3x
F4a4cosb4x

Fnancosbnx

• ??????????????????????????????????????????????????
  ????????(MP3)

16
????1
2??
1??? 255 0 0
2??? 255 0 0
3??? 0 0 255
4??? 0 0 255
5??? 0 0 255
6??? 0 255 0
7??? 0 255 0
8??? 0 255 0
1??
???1 255 0 0 2
???2 0 0 255 3
???3 0 255 0 3
17
????2
6???
6???
36????????
???????
Fnancosbnx
?????????
18
??????(Codec)

• ??????????????????????????????(?????)?????????(???
  ?)???????????????????????????????
• ?????????LAME, Ogg Vorbis, AC3Filter
• ?????????DivX5, WMV, WMA, XviD, Huffyuv, x264

19
?????????
??500kbps
XviD
WME9
http//head.egoism.jp/
20
??

1. ????????R?G?B ?3?????????????????????
2. SXGA?RGB?8?????????????????
3. SXGA?RGB?8??????30??????10????????????
4. 10???110???2????????

21
????????R?G?B ?3?????????????????????

• R23 ??????????????
• G23 ??????????????
• B23 ??????????????
• ????
• 23 23 23 888512?

22
SXGA?RGB?8????????????????

• SXGA?1280?1024???
• 831280102431,457,280???
• 3,932,160???
• 3,840k???
• 3.75M???

23
SXGA?RGB?8??????30??????10????????????

• 1??????
• 831280102431,457,280???
• 10??10603018,000??
• ????
• 31,457,28018,0005.66231041011???
• 66GB

24
10???110???2???????

• 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
• 0, 1, 10, 11, 100, 101, 110, 111, 1000, 1001, 1010

25
PC??

• ?????
• ?????(??????????)
• ??????????????
• ?????????????
• ?????????
• ?????(?????????)
• ?????????(???)
• ????